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Clean Water Act discharge permit · NPDES ILR10ZDYJ

IDOT CONTRACT 62K60 JAN '24 LETTING ITEM 57 BRIDGE REPLACEMENT OF US45 AT IL171, Willow Springs, IL: NPDES ILR10ZDYJ discharge permit, effluent exceedances, inspections, penalties

IDOT CONTRACT 62K60 JAN '24 LETTING ITEM 57 BRIDGE REPLACEMENT OF US45 AT IL171, held by Dunnet Bay Construction Company, holds NPDES permit ILR10ZDYJ. EPA’s file records it issued April 17, 2024 and expiring August 31, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for IDOT CONTRACT 62K60 JAN '24 LETTING ITEM 57 BRIDGE REPLACEMENT OF US45 AT IL171: its NPDES ID, its permit type and status, its dates, its address in Willow Springs, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZDYJ.

Identity

Facility as filedIDOT CONTRACT 62K60 JAN '24 LETTING ITEM 57 BRIDGE REPLACEMENT OF US45 AT IL171
Permittee as filedDunnet Bay Construction Company
NPDES IDILR10ZDYJ
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedApril 17, 2024
Expiration dateAugust 31, 2028
Issuing agencyIEPA
AddressWillow Springs, IL 60458
SubwatershedMaple Lake-Chicago Sanitary and Ship Canal (HUC 071200040705)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES ILR10ZDYJ.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES ILR10ZDYJ.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, ILR10ZDYJ.

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  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID ILR10ZDYJ there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

Willow Springs has 2 storm water construction permits on EPA's NPDES register, including this permit. IDOT CONTRACT 62K60 JAN '24 LETTING ITEM 57 BRIDGE REPLACEMENT OF US45 AT IL171 falls within the Maple Lake-Chicago Sanitary and Ship Canal subwatershed, which lists 131 NPDES permits.